CiteSpace 5.1.R1 (built 5/20/2017)
What's New:
1) Help: Check whether there is a newer version of CiteSpace
From this version onward, each time when you start CiteSpace, CiteSpace will check if there is a newer version or a version with a more recent built date. Depending on your response, it will either take you to the download page where you can see further details and download the most recently released package, or simply ignore the message and continue to use the version on your computer.

2) Data Processing Utilities: WoS: Batch Download from WoS
This function links to a third-party utility program called WosDocument.exe, which is written by Zhigang Hu, Dalian University of Technology. WosDocument facilitates the download process by automatically downloading records from a current session of the Web of Science to your computer. If you have a large number of records (>>500) to download, using this tool would make it a lot easier. Please respect the terms of use of the Web of Science.

3) Data Processing Utilities: WoS: Merge WoS files from multiple folders
Suppose you have a few different sets of WoS records stored in multiple folders such as D1, D2, etc. You can use this function to merge them into a single folder D of your choice. CiteSpace will arrange the merged records according to the year of publication. You can also filter records based on the Web of Science Subject Categories (SC), institution names of authors (C1), article types (DT), and/or the minimum number of citations (TC).

4) Burstness: History Views: Save As HTML
In the history view of the durations of burst, a new button is added at the bottom of the window Save and Show As HTML. CiteSpace will launch your default browser (e.g. Chrome or IE or else) and show the history view. You can enlarge (Ctrl +) or shrink (Ctrl -) the display and many other tasks you could do with an HTML page.

5) Resources: Links to other tools for science mapping
The Resources Menu is added to the menu bar of the Main GUI of CiteSpace. Each item on the list can take you to the homepage of the corresponding tool. The organization of the list is somewhat arbitrary, but tools closely related to CiteSpace - you can exchange intermediate files with them - are listed higher up on the list.

6) Project: Data Source: Specify individual data sources
In the Edit Properties of your current project, you will see a list of new radio buttons for the major data sources such as the WoS, Scopus, CSSCI, and CNKI. CiteSpace will use this information to optimize your interaction with CiteSpace. For example, for CNKI, CiteSpace will stop your attempt to generate a document co-citation network because CNKI does not have sufficient data for the analysis. Similarly, for CNKI, cluster labeling will be limited to using Keywords (K) only because although CiteSpace supports Chinese encoding, currently it does not support extracting noun phrases from Chinese, which would be necessary for cluster labeling from titles or abstracts.